Cisco 3750G - Catalyst Integrated Wireless LAN Controller User Manual

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Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 39 Configuring HSRP and Enhanced Object Tracking
Configuring HSRP
Default HSRP Configuration
Table 39-1 shows the default HSRP configuration.
HSRP Configuration Guidelines
Follow these guidelines when configuring HSRP:
• HSRP can be configured on a maximum of 32 VLAN or routing interfaces.
• In the procedures, the specified interface must be one of these Layer 3 interfaces:
– Routed port: a physical port configured as a Layer 3 port by entering the no switchport
interface configuration command.
– SVI: a VLAN interface created by using the interface vlan vlan_id global configuration
command and by default a Layer 3 interface.
– Etherchannel port channel in Layer 3 mode: a port-channel logical interface created by using
the interface port-channel port-channel-number global configuration command and binding
the Ethernet interface into the channel group. For more information, see the “Configuring
Layer 3 EtherChannels” section on page 34-15.
• All Layer 3 interfaces must have IP addresses assigned to them. See the “Configuring Layer 3
Interfaces” section on page 11-25.
Enabling HSRP
The standby ip interface configuration command activates HSRP on the configured interface. If an IP
address is specified, that address is used as the designated address for the Hot Standby group. If no IP
address is specified, the address is learned through the standby function. You must configure at least one
routing port on the cable with the designated address. Configuring an IP address always overrides
another designated address currently in use.
When the standby ip command is enabled on an interface and proxy ARP is enabled, if the interface’s
Hot Standby state is active, proxy ARP requests are answered using the Hot Standby group MAC
address. If the interface is in a different state, proxy ARP responses are suppressed.
Table 39-1 Default HSRP Configuration
Feature Default Setting
HSRP groups None configured
Standby group number 0
Standby MAC address System assigned as: 0000.0c07.acXX, where XX is the HSRP
group number
Standby priority 100
Standby delay 0 (no delay)
Standby track interface priority 10
Standby hello time 3 seconds
Standby holdtime 10 seconds

Cisco 3750G - Catalyst Integrated Wireless LAN Controller Specifications

General

Brand	Cisco
Model	3750G - Catalyst Integrated Wireless LAN Controller
Category	Wireless Router
Language	English